[ncl-talk] Change the thickness of contours in plot

[Sancta Vega]

Hello,
I would like To increase my contours on an ncl map. For exemple
0.1 size for isolines from 0.1 To 1
0.2  for 1.2 To 1.5
0.5 for 1.6 To 1.8
1 for 2 and more.

Can you tell me please which function is able to do this with ncl?
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